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The update, which will be published on Wednesday, is likely to lead to fresh questions about Bolland’s strategy and future at the firm.

M&S shares ended last week at 406.7p having lost 20 per cent of their value since hitting 511p in February.

Clothing sales will not have been helped by the mild weather over recent weeks which has hit demand for winter jumpers and coats.

Rival Next, which has consistently outperformed M&S in recent years, was last week forced to warn that profits for the year will be £25million lower than expected because of the warm autumn.

Future proof: Marc Bolland, pictured above with model Rosie Huntington-Whiteley, recently insisted that M&S is now ‘fit for the future’ having spent more than £2.3billion on his turnaround strategy

Next has overtaken M&S in terms of profits, raking in £695million last year to its more established rival’s £623million.

The latest M&S clothing ranges have been well received by the fashion press but problems with the supply chain have held it back.

Shoppers have complained that stores run out of popular items while its website has suffered teething problems since its relaunch in February. Bolland, pictured above with model Rosie Huntington-Whiteley, recently insisted that M&S is now ‘fit for the future’ having spent more than £2.3billion on his turnaround strategy.

But Kate Calvert, an analyst at Investec, said: ‘We don’t expect much hard evidence to support a recovery thesis yet.’